[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-04-01 UTC."],[[["This page provides documentation for the `Precondition` class within the Google Cloud Firestore API for .NET, detailing its use in update operations."],["The `Precondition` class is immutable and allows for specifying whether a document must exist or must not exist, or if it must have a specific last update time."],["Key properties of the `Precondition` class include `Exists` to check for document existence and `LastUpdateTime` to check for the document's last update timestamp."],["Static properties such as `MustExist` and `None` provide predefined preconditions for common scenarios, specifically checking for document existence or no preconditions."],["The `LastUpdated` method allows the creation of a `Precondition` that specifies a required last update time for the document, which is provided as a timestamp."]]],[]]
